SB20260912392 - Race condition in Linux kernel smc

Description

This security bulletin contains information about 1 vulnerability.

1) Race condition (CVE-ID: CVE-2026-80980)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to cause connection state inconsistencies.

The vulnerability exists due to a race condition in the connection state flags of struct smc_connection when processing received connection control messages concurrently with connection termination. A remote attacker can send connection control messages during concurrent connection termination to cause connection state inconsistencies.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/2cb7a8d64b7e8ccdc69bbe48fe9c4eaa79c33aec
• https://git.kernel.org/stable/c/313f79149eb337411c64e2c247234b62ef9a3cb9
• https://git.kernel.org/stable/c/db51a8658c11a82432b64999519a269c3aabb447